Raw data transfer via DATA CALL using FBUS ...

[Bilimsel Adam]

Dear All,

I just joined your list.

I have developed an embedded system to 
communicate with Nokia 5110. I used Pic micro.

I can make voice call, terminate a call, make battery
and antenna strength monitoring, and
all the SMS functions by my uC.

Now I try data call using FBUS.

I TRY TO TRANSFER DATA FROM ONE NOKIA 5110
TO OTHER NOKIA 5110 WITH 9600BPS.

Here below the data captured from serial port;

To initiate data call: (XX are the phone number)
1E 00 0C 01 00 27 00 01 00 01 0B xx xx xx xx xx xx xx
xx xx 30 31 01 02 01 05 81 01 00 00 01 02 0A 07 A2 88
81 21 15 63 A8 00 00 01 42 00 7A E8 

ACK to response from phone:
1E 00 0C 7F 00 02 0D 01 1F 7C 

Many repetitive RLP frames after then (all are the
same because other phone is not answered):
1E 00 0C F0 00 20 01 D9 F8 3D 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 EB 34 

...

According to my knowledge RLP frames 
(RLP : Radio Link Protocol?)
are 30 bytes (user data of 24 bytes), 
it is a full duplex logical link layer protocol 

Maximum data rate of 1200 bytes/s (every 20ms)
Fully reliable except when the link is reset.

And I guess that 

F8 3D 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00

is the RLP frame.

1E 00 0C F0 00 20 01 D9 and the last 2 XOR bytes EB 34
belongs to Nokia FBUS protocol?

--------------

HOW CAN INITIATE A DATA CALL CONNECTION AND
TRANSFER MY DATA?

I looked the Gnokii docs but it is not clear.
Or I could not understand it.

I JUST WANT TO TRANSFER RAW DATA..

Best regards,

Bilimsel








__________________________________
Do you Yahoo!?
Yahoo! Finance: Get your refund fast by filing online.
http://taxes.yahoo.com/filing.html